I can give you input in a Raleigh c30. Very much a "comfort" bike, upright seating position, on the heavy side, I have put about 1500 miles on this year, and it's stood up well. The tires have a greater amount of rolling resistance than a road bike (thus a hybrid). The nice part about it is that I have also done some light offroad riding, with great success. I rode the 30 mile MS Tour in Manhattan, and if not for my 10 year old, I could have ridden 60 miles no problem. I was not tired at the end, and I attribute alot to the positioning on the bike.
Tightwad is correct, you should consider a used bike. Many people begin but few finish. Good luck
2005 Trek Madone SL 5.2 Project One, Lightning
Koobi Enduro, Stella Azzurra Tirreno ergonomic bars
2004 Raleigh C30 back to stock (thanks to my son!)
2002 ALMS TT 412 Hp@crank
"I thought of it while riding my bike" Einstein on the Theory of Relativity